National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Minimum Temperature Rankings, September 2008

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 2008
1-Month
52.43°F
(11.35°C)
51.90°F
(11.06°C)
0.53°F
(0.29°C)
74th Coolest
Coolest since:
1918
55th Warmest
Warmest since:
2019
Aug–Sep 2008
2-Month
56.02°F
(13.34°C)
55.48°F
(13.04°C)
0.54°F
(0.30°C)
78th Coolest
Coolest since:
1974
51st Warmest
Warmest since:
2019
Jul–Sep 2008
3-Month
57.71°F
(14.28°C)
57.16°F
(13.98°C)
0.55°F
(0.30°C)
87th Coolest
Coolest since:
1924
42nd Warmest
Warmest since:
2022
Jun–Sep 2008
4-Month
57.43°F
(14.13°C)
56.78°F
(13.77°C)
0.65°F
(0.36°C)
88th Coolest
Coolest since:
1903
41st Warmest
Warmest since:
2021
Ties: 1981
May–Sep 2008
5-Month
55.25°F
(12.92°C)
54.91°F
(12.73°C)
0.34°F
(0.19°C)
72nd Coolest
Coolest since:
1907, 1924
57th Warmest
Warmest since:
2018
Ties: 1978
Apr–Sep 2008
6-Month
52.26°F
(11.26°C)
52.19°F
(11.22°C)
0.07°F
(0.04°C)
55th Coolest
Coolest since:
1907
74th Warmest
Warmest since:
2018
Mar–Sep 2008
7-Month
49.04°F
(9.47°C)
49.03°F
(9.46°C)
0.01°F
(0.01°C)
55th Coolest
Coolest since:
1917
74th Warmest
Warmest since:
2012
Ties: 1901, 1953
Feb–Sep 2008
8-Month
45.83°F
(7.68°C)
45.75°F
(7.64°C)
0.08°F
(0.04°C)
63rd Coolest
Coolest since:
1917
66th Warmest
Warmest since:
2012
Jan–Sep 2008
9-Month
42.93°F
(6.07°C)
42.86°F
(6.03°C)
0.07°F
(0.04°C)
63rd Coolest
Coolest since:
1917
66th Warmest
Warmest since:
2012
Ties: 1959
Dec 2007–Sep 2008
10-Month
40.99°F
(4.99°C)
40.84°F
(4.91°C)
0.15°F
(0.08°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2016
Nov 2007–Sep 2008
11-Month
40.18°F
(4.54°C)
39.92°F
(4.40°C)
0.26°F
(0.14°C)
73rd Coolest
Coolest since:
1917
55th Warmest
Warmest since:
2016
Oct 2007–Sep 2008
12-Month
40.52°F
(4.73°C)
40.04°F
(4.47°C)
0.48°F
(0.26°C)
87th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2016
Apr 2007–Sep 2008
18-Month
44.88°F
(7.16°C)
44.09°F
(6.72°C)
0.79°F
(0.44°C)
98th Coolest
Coolest since:
1917
30th Warmest
Warmest since:
2016
Oct 2006–Sep 2008
24-Month
41.07°F
(5.04°C)
40.04°F
(4.47°C)
1.03°F
(0.57°C)
104th Coolest
Coolest since:
1918
23rd Warmest
Warmest since:
2017
Ties: 2015
Oct 2005–Sep 2008
36-Month
41.40°F
(5.22°C)
40.02°F
(4.46°C)
1.38°F
(0.76°C)
108th Coolest
Coolest since:
1918
18th Warmest
Warmest since:
2017, 2018
Oct 2004–Sep 2008
48-Month
41.58°F
(5.32°C)
40.01°F
(4.45°C)
1.57°F
(0.87°C)
113th Coolest
Coolest since:
1918
12th Warmest
Warmest since:
2018
Ties: 2015
Oct 2003–Sep 2008
60-Month
41.53°F
(5.29°C)
40.00°F
(4.44°C)
1.53°F
(0.85°C)
113th Coolest
Coolest since:
1920
11th Warmest
Warmest since:
2019, 2020

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